光纤传感技术测量气液两相流持气率研究

Research on the Measurement of the Gas Holdup in Gas/liquid Dual-phase Flow Using Optical Fiber Sensing Technology

文中提出了一种新型气液两相流体参数测试方法。传感机理为弯曲光纤的传输光功率随外界介质折射率而变化。在分析光纤弯曲波导传输光能损耗与弯曲半径、外界折射率等因素关系的基础上，提出一种 Ｕ 型结构的光纤传感器系统，并将其应用于气液两相流体持气率测试中，进行了初步研究和探讨。

A new method of Gas/liquid Dual-phase flow gas-holdup measuring has been introduced in this paper. The sensing principle is optical fiber bend waveguide can be modified in response to an external refractive index. Through analyzing the experiment results, a U-optical fiber sensor system has been described.